Would a piece of shim stock along one side bring it back around?

How does the Rossi differ mechanically from the Marlin? 357 versions

Thanks for the warm welcome and the replies. I'll continue to study the options and hope to buy one soon.

Hello. I have been searching and reading here for awhile. Great place to learn. I am a long time shooter / reloader trying to learn what my options are for a lever action in 357 cal. Is there a stainless model other than the Puma / Rossi? Blued is okay too. I plan to use a vernier tang sight rather ...